Physics 6 (paper2)

What is a transverse wave?

A wave the oscillates perpendicular (up and down)

Name 6 features of a transverse wave

Peak

Total displacement

Trough

Amplitude

Wave length

Used for light

What is a longitudinal wave?

A wave the oscillates parallel with particle travelling back wards and forwards

Name 3 features of a longitudinal wave

Compression

Rarefaction

Used for sound

Define time period

The time for a single wave to pass a point

What is the equation for time period?

1/hertz

How do you calculate;ate magnification?

Image height/object height

Define converging

Thickest at the center

Define diverging

Thinnest at the center

What is the equation for wave length?

Volocity= frequencyX wave length

Name 6 features of sound wave

Travel faster through a solid

Longitudinal;

Waves vibrate the ear drum sending signals to the brain

Does not travel in a vacuume

Travels through vibration particles

Ultrasound vibrates particle and passes through the skin,bones stop it

Define pitch

How close the waves are

Define volume

How large the waves are

When you hear a sound what is the process of it reaching your brain?

Ear drum

Osicles

Cochlea

Auditory nerve

Brain

What is the process of an ultra sound?

Transmitter

Receiver

Then you see the baby as it changes medium

Define transmitter

Produces waves

Define receiver

Detects wave

What is the equation for wave reflection?

SpeedXtime/2= distance

What are seismic waves?

Waves produced during earthquakes

Name 5 features of p waves

Longitudinal

Faster

Liquid and solids

Wave shadow

Shows solid inner core

Name 4 features of s waves

Transverse

Solids only

Detected around the world (curved waves)

Wave shadow zone shows liquid core

What are the primary colours in PHYSICS?

Red green blue

What are the secondary colours in PHYSICS?

Yellow, cyan, megenta

What happens when waves are absorbed?

Energy is transferred to the materials energy store

What is the law do the reflection of waves?

Waves can be absorbed or transmitted at the boundary between two different materials

Define transmitted

Waves carry on travelling through the new material

Define speculation reflection

A wave is reflected from one direction through a smooth surface

Define diffuse reflection

Rough surface, rays will be scattered

What is the order of wavelengths in waves?

Radio waves (1m-10\*4m)

Microwaves (10m\*-2)

Infrared (10m\*-5)

Visible light (10m\*-7)

Ultraviolet (10m\*-8)

X-rays (10m\*-10)

Games rays (10m\*-15m)